Display device

Abstract

A display device includes a substrate including a display area and a peripheral area, a light-emitting element in the display area, signal transmission lines on the substrate, extending in a first direction, and repeatedly located along a second direction crossing the first direction, separation spaces respectively between adjacent ones of the signal transmission lines, and adjacent to each other in an oblique direction, and an identification pattern including at least one identification block in the separation spaces.

What is claimed is: 
     
         1 . A display device comprising:
 a substrate comprising a display area and a peripheral area;   a light-emitting element in the display area;   signal transmission lines on the substrate, extending in a first direction, and repeatedly located along a second direction crossing the first direction;   separation spaces respectively between adjacent ones of the signal transmission lines, and adjacent to each other in an oblique direction; and   an identification pattern comprising at least one identification block in the separation spaces.   
     
     
         2 . The display device of  claim 1 , wherein a width of the separation spaces is greater than a width of a shortest distance between two adjacent signal transmission lines of the signal transmission lines. 
     
     
         3 . The display device of  claim 1 , wherein the signal transmission lines comprise:
 a first line comprising a (1-1)th bent portion positioned in a first row;   another first line comprising a (1-2)th bent portion positioned in a third row;   a second line comprising a (2-1)th bent portion positioned in the first row and a (2-2)th bent portion positioned in a second row between the first row and the second row; and   a third line comprising a (3-1)th bent portion positioned in the second row and a (3-2)th bent portion positioned in the third row.   
     
     
         4 . The display device of  claim 3 , wherein the separation spaces comprise:
 a first separation space between the (1-1)th bent portion and the (2-1)th bent portion;   a second separation space between the (2-2)th bent portion and the (3-1)th bent portion; and   a third separation space between the (1-2)th bent portion and the (3-2)th bent portion.   
     
     
         5 . The display device of  claim 3 , wherein the (1-1)th bent portion is bent in an opposite direction to the (1-2)th bent portion, the (2-1)th bent portion is bent in an opposite direction to the (2-2)th bent portion, and the (3-1)th bent portion is bent in an opposite direction to the (3-2)th bent portion. 
     
     
         6 . The display device of  claim 1 , wherein the signal transmission lines comprise:
 a first line comprising a first bent portion positioned in a first row;   a second line comprising a second bent portion positioned in a second row adjacent to the first row;   a third line comprising a third bent portion positioned in a third row adjacent to the second row; and   a fourth line comprising a fourth bent portion positioned in a fourth row adjacent to the third row.   
     
     
         7 . The display device of  claim 6 , wherein the separation spaces comprise:
 a first separation space between the first bent portion and the second line adjacent to the first bent portion;   a second separation space between the second bent portion and the third line adjacent to the second bent portion;   a third separation space between the third bent portion and the fourth line; and   a fourth separation space between the fourth bent portion and another first line of the signal transmission lines that is adjacent to the fourth bent portion.   
     
     
         8 . The display device of  claim 6 , wherein the first, second, third, and fourth bent portions are bent in a same direction. 
     
     
         9 . The display device of  claim 1 , wherein the signal transmission lines comprise:
 a first line comprising a first bent portion positioned in a first row;   a second line comprising a second bent portion positioned in a second row adjacent to the first row;   a third line comprising a third bent portion positioned in the first row; and   a fourth line comprising a fourth bent portion positioned in the second row.   
     
     
         10 . The display device of  claim 9 , wherein the separation spaces comprise:
 a first separation space between the first bent portion and the second line;   a second separation space between the second bent portion and the third line;   a third separation space between the third bent portion and the fourth line; and   a fourth separation space between the fourth bent portion and another first line of the signal transmission lines.   
     
     
         11 . The display device of  claim 9 , wherein the first, second, third, and fourth bent portions are bent in a same direction. 
     
     
         12 . The display device of  claim 1 , wherein the signal transmission lines comprise:
 a first line comprising a (1-1)th bent portion positioned in a first row, and a (1-2)th bent portion positioned in a fourth row;   a second line comprising a (2-1)th bent portion positioned in the first row, and a (2-2)th bent portion positioned in a second row adjacent to the first row;   a third line comprising a (3-1)th bent portion positioned in the second row, and a (3-2)th bent portion positioned in a third row adjacent to the second row; and   a fourth line comprising a (4-1)th bent portion positioned in the third row, and a (4-2)th bent portion positioned in the fourth row.   
     
     
         13 . The display device of  claim 12 , wherein the separation spaces comprise:
 a first separation space between the (2-1)th bent portion and the third line;   a second separation space between the (3-1)th bent portion and the fourth line;   a third separation space between the (4-1)th bent portion and another first line of the signal transmission lines that is adjacent to the (4-1)th bent portion; and   a fourth separation space between the (1-2)th bent portion and another second line of the signal transmission lines that is adjacent to the (1-2)th bent portion.   
     
     
         14 . The display device of  claim 12 , wherein the (1-1)th bent portion and the (2-1)th bent portion are bent in a same direction, the (2-2)th bent portion and the (3-1)th bent portion are bent in a same direction, the (3-2)th bent portion and the (4-1)th bent portion are bent in a same direction, and the (1-2)th bent portion and the (4-2)th bent portion are bent in a same direction. 
     
     
         15 . The display device of  claim 1 , wherein the signal transmission lines comprise:
 a first line comprising a (1-1)th bent portion positioned in a first row;   another first line comprising a (1-2)th bent portion positioned in a second row adjacent to the first row, a (1-3)th bent portion positioned in a third row adjacent to the second row, and a (1-4)th bent portion positioned in a fourth row adjacent to the third row;   a second line comprising a (2-1)th bent portion positioned in the first row, and a (2-2)th bent portion positioned in the second row;   another second line comprising a (2-3)th bent portion positioned in the third row;   a third line comprising a (3-1)th bent portion positioned in the first row, a (3-2)th bent portion positioned in the second row, and a (3-3)th bent portion positioned in the third row; and   a fourth line comprising a (4-1)th bent portion positioned in the second row, a (4-2)th bent portion positioned in the third row, and a (4-3)th bent portion in the fourth row.   
     
     
         16 . The display device of  claim 15 , wherein the separation spaces comprise:
 a first separation space between the (1-1)th bent portion and the (2-1)th bent portion, which are bent in opposite respective directions;   a second separation space between the (2-2)th bent portion and the (3-2)th bent portion, which are bent in opposite respective directions;   a third separation space between the (3-3)th bent portion and the (4-2)th bent portion, which are bent in opposite respective directions; and   a fourth separation space between the (4-3)th bent portion and the (1-4)th bent portion, which are bent in opposite respective directions.   
     
     
         17 . The display device of  claim 1 , further comprising a transistor comprising an active layer, a gate electrode, a source electrode, and a drain electrode in the display area,
 wherein the identification pattern is at a same layer as any one of the active layer, the gate electrode, the source electrode, and the drain electrode.   
     
     
         18 . The display device of  claim 1 , wherein the at least one identification block comprises an identification number or an identification symbol. 
     
     
         19 . The display device of  claim 1 , wherein respective sizes of the separation spaces are the same. 
     
     
         20 . The display device of  claim 1 , wherein the signal transmission lines are connected to a data line for providing a data voltage to a pixel structure in the display area.